A London, blue topaz and diamond dress ring, 14ct white gold, made as a large dress solitaire ring, featuring an emerald, cut blue topaz of intense deep blue colour, known as London blue, weighing, approximately 10.50ct, claw set, framed by brilliant cut diamonds to surround, of uniform size, further detailed by four additional diamonds to each, shoulder, set vertically, totalling approximately 1.00ct, merging to a fine, band. Valuation on request.